Hi was founded by Charles Gligo, the founder of Howdy Company. Its previous product was called Haodi orange soda. After more than two years of trying different formulas. Charles hopes that this new formula will bring different feelings to consumers. He started producing its products two weeks before the 1929 financial crisis. Charles never explained why the product was called 7-up. The most common saying is that 7 and U mean that 7-up contains 7 kinds of spices and has been carbonated.

7-up is the lemonade brand of Dr Pepper/Seven Up Company, which started to produce bottled products from 1987. Outside the United States, 7-up is a registered trademark of PepsiCo. Qixi was originally named Bib-Label litered Lemon-lime soda, and started production in St. Louis, Missouri on 1929. It originally contained lithium citrate, a sedative. Many early drinks contained pharmaceutical ingredients. This ingredient has been deleted from the formula of 1950.